Adjustable armchair



FIG. 1 is a front perspective view of an adjustable armchair showing my new design;

FIG. 2 is a top plan view of the adjustable armchair of FIG. 1;

FIG. 3 is an elevation side view of the adjustable armchair of FIG. 1;

FIG. 4 is a bottom plan view of the adjustable armchair of FIG. 1;

FIG. 5 is a front elevation view of the adjustable armchair of FIG. 1;

FIG. 6 is a rear elevation view of the adjustable armchair of FIG. 1; and

FIG. 7 is an elevation side view of the adjustable armchair of FIG. 1 in an inclined position.

The side of the chair not shown is a mirror image of the side shown in FIG. 3. 

The ornamental design for an adjustable armchair, as shown and described. 